Question

solve the given triangles:
a=4, b=5, alpha = 16°

Answer 1

Angle alpha is opposite side a, right?

Answer 2

So you need to find \[\beta\] \[\gamma\] and c.

Answer 3

@Miyuru yes!

Answer 4

Since you have an angle and a side that are opposite each other, you can establish a ratio of the law of sines.
Then since you have b, use the law of sines to find angle beta.
Once you have beta, use alpha + beta + gamma = 180 to fing gamma.
Then use the law of sines again to find c.

Answer 5

Do you know the Sine Law?

Answer 6

yes ! thank you guys !

Answer 7

You're welcome.

Answer 8

You were quicker than me Professor of Mathematics. :)